(;AB[rd]AB[qd]AB[rf]AB[pc]AB[oc]AB[nc]AB[nb]AB[oa]AW[ob]AW[pb]AW[qc]AW[rc]AW[sb]AW[qa]AP[goproblems]
(;B[ra];W[rb];B[na];W[pa];B[qb]C[];W[pb]LB[mg:Tenuki?]C[Can B tenuki? If so, click 'Tenuki?' (Otherwise, keep playing locally.)FORCE]TR[mg]
(;B[qa];W[pa]LB[mg:Tenuki?]C[W is threatening to take the triangled stones. Can B tenuki? (If you think so, click 'Tenuki?')]TR[qb]TR[qa]TR[ra]
(;B[mg];W[sa];B[qa]C[You were correct to tenuki! W still dead. However, you could also have tenuki'd the _first_ time, too...])
(;B[ob]C[Although W dies, B could have played elsewhere _both times_ (W was dead anyway). This is not the best result for B.]))
(;B[pa];W[qa]C[Yep, W is dead. (W can only make one eye this way.) However, B _was_ able to tenuki the first time too...])
(;B[mg]
(;W[pa]
(;B[qa];W[sa];B[qa]C[Correct! W is dead and B was able to tenuki to boot.RIGHT])
(;B[ob];W[qa];B[qb]C[Yes - you were correct to tenuki, and w is dead.RIGHT]))
(;W[qa]
(;B[pa]C[Correct! W is dead and B was able to tenuki to boot.RIGHT])
(;B[ob];W[pa];B[qb]C[Yep - W is dead (and B got to tenuki as well).RIGHT])))
(;B[ob];W[qa];B[pa]C[Yes, W can only make one eye. However, W was already dead, so you could have tenuki'd...]))
(;B[na];W[ra]
(;B[qb];W[pa]C[Nope -- w lives. : (])
(;B[pa];W[qb]C[Nope -- w lives. : (]))
(;B[rb];W[ra];B[na];W[mg]C[W tenukis...]
(;B[pa];W[qb]C[W is alive! :-/])
(;B[sd];W[nf]C[W tenukis again..]
(;B[sc];W[qb]C[W is alive! :-/])
(;B[pa];W[qb]C[W is alive! :-/])))
(;B[sd];W[ra];B[na]LB[qb:B]LB[pa:A]C[W is alive and can even tenuki, as A and B are miai for W to live.]))